138 results about "Copper" patented technology

A multilayer wiring board capable of feeding sufficient electric power to a circuit element, such as an IC chip. In one embodiment of the present invention, a multilayer wiring board is comprised of: a core board; a build up layer disposed on an upper surface of the core board; a build up layer disposed on a lower surface of the core board; and a power supply structure embedded in a through hole penetrating the core board and the build up layers. The power supply structure is comprised of: a conductive metal rod made of copper as a main material; a conductive metal tube made of copper as a main material and provided coaxially with the conductive metal rod; and an insulating material filling a gap between the conductive metal rod and the conductive metal tube.

A semiconductor carrier film includes (i) a base film having insulating property, (ii) a barrier layer provided on the base film, the barrier layer including nickel-chrome alloy as a main component, and (iii) a wire layer provided on the barrier layer, the wire layer being made of conductive material including copper, and a ratio of chrome in the barrier layer is 15% to 50% by weight. A semiconductor device is formed by bonding a semiconductor element to the wire layer. The semiconductor carrier film and the semiconductor device are suitable for attaining finer pitches and higher outputs, because insulating resistance between adjacent terminals is less likely to deteriorate then in conventional art even in the environment of high temperature and moisture.

The invention discloses a producing method for copper coated aluminum row profile, and the method comprises following steps in turn: 1) cleaning, 2) drying, 3) head rolling, 4) clearance drawing, 5) bimetal combining furnace heating, 6) high frequency induction heating, 7) hot drawing, 8) heat preserving, 9) oxide layer washing and 10) packing. Beneficial effects of the invention are: the metal is not oxidized during drawing. The high frequency induction skin effect enables two kinds of metal with significantly different melting points reaching the critical point of composite metal metallurgy integrating temperature simultaneously, so a permanent compact metallurgical combining is realized between the two kinds of metals. The density of the profile in the invention is only 36.5% to 41.6% of that of pure copper rows, the length of the profile is 2.45 to 2.70 times of that of pure copper rows, the tensile strength of the profile is over 1.6 to 2 times of that of pure copper rows, and the specific resistance is between 0.027310 ohm question mark mm2/m(-40 Celsius system) and 0.041506 ohm question mark mm2/m(70 Celsius system).

A spray casting-suction casing apparatus for preparing great non-crystal alloy block is composed of upper and lower furnace chambers, water-cooled partition between said chambers, heating body consisting of one Mo sheet layer and 6 reflecting screen layers, mould made of quartz glass or graphite arranged in said heating body and passing through said partition, U-shaped seals, plug pulling unit for the quartz glass (or graphit) plug of the circular hole on the bottom of mould, and water-cooled copper mould made of red copper.

The present invention relates to an infrared reflecting black pigment which comprises a composite oxide containing Fe, Co and at least one metal selected from the group consisting of Al, Mg, Ca, Sr, Ba, Ti, Zn, Sn, Zr, Si and Cu; has an average plate surface diameter of 0.02 to 5.0 μm, a blackness (L* value) of not more than 30, an average reflectance of not more than 10% in a visible light wavelength range of 250 to 780 nm and an average reflectance of not less than 35% in an infrared wavelength range of 780 to 2500 nm. There is provided an infrared reflecting black pigment which is capable of producing a heat-shielding paint containing no harmful elements and exhibiting an excellent infrared reflecting property.

The invention relates to a micro-electrolytic filler containing a catalyst, which comprises ferrum and carbon and is added with a catalyst. The mass percents of ferrum, carbon and catalyst in the filler are 45-55%, 40-50% and 1-5%, respectively. The catalyst is one or more of the following elements: copper, vanadium, molybdenum and antimony. The invention has the advantages that, firstly, the COD de-electrolyzing rate in wastewater which has large concentration of organic matters, high poisonousness and high chromaticity and is hard to treat biochemically is improved by 10-20%, the COD removing rate is about 35-60%, the chromaticity can be removed by 60-90% and meanwhile the B/C value is improved by 0.1-0.3 and biodegradability of the wastewater is improved; secondly, the cylindrical cellular structure of the filler is beneficial to ensure adequate contract reaction of the filler and water to reduce the flowing resistance of the water; and thirdly, the carbon bed is not easy to passivate and harden and be blocked by iron mud, and the amount of sludge is reduced.

The invention provides a method for effectively restraining generation of sulfur trioxide and waste acid in smelting smoke. By adjusting smoke temperature, and/or controlling the wind leakage amount of a smoke flue, and/or reducing the water content of materials and the sulfate content, generation of the sulfur trioxide and the waste acid in the smoke is restrained. By adjusting parameters such as the smoke temperature, the wind leakage amount, the water content and the sulfate content, generation of the sulfur trioxide and the waste acid is restrained, and compared with the prior art, the method has the beneficial effects that the cost is low, operation is easy, other compounds are not introduced, and generation of the sulfur trioxide and the waste acid in the smoke is restrained from source. The method can be applied to the smoke waste heat recovery and treatment link in the copper sulphide concentrate oxygen enrichment matte smelting process, generation of the sulfur trioxide and the waste acid in the smoke is restrained, and then the problems of corrosion to the smoke flue and waste acid are relieved.

The electrode for high-voltage in-situ impedance spectroscopy measurement of the present invention and its preparation method and application belong to the technical field of in-situ measurement of electrical quantities under high-voltage conditions. The electrode consists of an aluminum oxide protective layer (3) deposited on the surface of the diamond anvil (2) and a metal film electrode (1); the metal film electrode (1) is circular in the center of the anvil surface of the diamond anvil (2), Copper wire (5) is bonded to the metal film electrode (1) on the side of the diamond anvil (2); the metal spacer (4) is used as another electrode, forming an axisymmetric electrode together with the metal film electrode (1) system. Electrodes are prepared by magnetron sputtering, molybdenum coating, aluminum oxide deposition, photolithography and chemical corrosion. The invention solves the problems of electrode fixing and sample cavity insulation, and can ignore the influence of the parasitic capacitance and inductance of the system on the measurement results, making it possible to measure the material impedance spectrum in situ with the diamond anvil under high pressure.

The present invention discloses a thick copper circuit board processing method. The objective of the invention is to solve the technical problems of the squeeze of glass fibers by line shoulder dents and protrusions, existence of air bubbles, poor inter-layer combining force, high possibility of de-lamination and board thinning existing in existing thick copper circuit board laminating technologies. The method of the invention includes the following steps that: at the first surface of a thick copper board, a non-circuit pattern area is etched and thinned, so that a groove can be formed; the groove is flatly filled with liquid resin in a coating manner, and the liquid resin is not cured; and a prepreg and a first outer-layer plate are stacked on the first surface of the thick copper board, and the prepreg, the first outer-layer plate and the thick copper board are laminated, so that the liquid resin and the prepreg can be cured in a laminating process.

The invention discloses a neutral point direct current online measurement device for a transformer, which comprises a Hall sensor, a copper bar, a transmission fiber, a signal processing module arranged in a box body, a photoelectric power conversion module, a measurement signal photoelectric conversion module and a power laser launching circuit module, wherein the copper bar penetrates through the two sides of the box body; the copper bar in the box body is sleeved with the Hall sensor; the signal processing module is used for receiving an output signal of the Hall sensor, converting the output signal into an optical signal and outputting the optical signal into the measurement signal photoelectric conversion module; the measurement signal photoelectric conversion module is used for converting the inputted optical signal into an electrical signal to output; the photoelectric power conversion module is used for providing power for the Hal sensor and the signal processing module; and the power laser launching circuit module is used for inputting medium power laser for the photoelectric power conversion module. The neutral point direct current online measurement device adopts the optical fiber to supply the energy and transmit the signals, blocks an over-voltage transmission path and improves the measurement stability and the accuracy.

The invention relates to a product line for painting a copper sheet wire. An upper and lower wire guiding wheels are respectively installed on an upper and lower guiding wheel brackets; an oven is installed on the bracket; a painting mechanism is located below the oven; more than three notches are uprightly arranged at an interval on a side wall of a chute of the painting mechanism; a clamping board is installed on the side wall of the chute; a mutton felt is disposed between the clamping board and the side wall; more than one separating board is fixed in the chute to divide the chute into more than two separate charge chutes; outlets of more than two feed pipes communicated with a hopper are located on the upper part of each charge chute. The lower part of the charge chute is communicated with a charging bucket by an overflow box. A film regulating mechanism is disposed on the upper part of the charge chute. On the film regulating mechanism, more than three inserting racks are hinged on a fixing frame. A limiting groove of a model cover is respectively disposed in a notch of the inserting rack. Inner end face of a shaft shoulder at two ends of the model cover is respectively connected with the upper and lower end faces of the inserting rack. The invention can paint more than two kinds of painting materials on the copper sheet wire and can automatically adjust the horizontal position of the painting model to keep the film uniform on the surface of the copper sheet wire.

The invention discloses a copper and iron compound honeycomb coating type denitrification catalyst as well as a preparation method and application thereof. The catalyst provided by the invention takesa copper-based molecular sieve prepared through an ion exchange method or an immersion method as an active component, ferric polysilicate is added as a co-catalysis component, a honeycomb cordieriteceramic block is used as a carrier and an aluminum sol is used as as a binder. The catalyst prepared by the invention is prepared through a vacuum coating method; the preparation method is simple to operate, holes are not liable to block in a coating process and large-scale production is easy to realize; a coating has a large capacity and the coating fastness of active components is high; a good cooperative catalysis effect is formed between duplex metal including copper and iron, the denitrification activity of the catalyst is improved and the anti-H2O performance and anti-SO2 performance ofthe catalyst are also improved. The catalyst provided by the invention has a denitrification efficiency of 90 percent or more in a range of 220 to 510 DEG C and has a good application prospect in a stationary source denitrification direction.

The invention relates to 1,4-di(2,4-diamino phenoxy) benzenoid form high-temperature epoxy adhesive and a preparation method thereof. The adhesive consists of a component A and a component B in a mass ratio of 1:1-2, wherein the component A is a co-polymer formed by the reaction between 1,4-di(2,4-diamino phenoxy) benzene and epoxy resin; and the component B is a homogeneous transparent solution which has the solid content being 15-30 percent and is formed by the reaction between 1,4-di(2,4-diamino phenoxy) benzene and binary acid anhydride in strong polar aprotic organic solvent and toluene. The preparation method comprises the following steps of stirring and uniformly mixing the component A and the component B at room temperature in a mass ratio of 1:1-2. The preparation process is simple, and the adhesive is excellent in comprehensive performance, so that the adhesive can be widely applied to adhesion among steel, copper, aluminum and other metals, as well as ceramic, glass, resin-based composite materials and other base materials, and has an excellent industrial prospect.

The invention discloses an oxygen atmospheric control making method of a-axle oriental YBCO hyperconductive thick film, which is characterized by the following: utilizing liquid-phase epitaxial device to make high-crystal product; allocating Ba-Cu-O powder according to the rate of Ba and Cu at 3: 5; grinding; sintering; placing in the Y2O3 copple to fuse; obtaining Y-Ba-Cu-O flux; changing 100% pure-oxygen atmosphere in the sealed furnace; adjusting flux temperature in the copple lower than YBCO peritectic fusing temperature by 5-20K; obtaining high-quality a-axle YBCO film on the liquid-phase of (110) single-crystal neodymium gallium acid base.

The invention discloses preparation of fluorogold nano-clusters and application of the fluorogold nano-clusters to tetracycline and copper fluorescent probes. The fluorogold nano-clusters (Au NCs) aresynthesized with a one-step method from casein separated from milk and carbon quantum dots as a stabilizer and a reducer for synthesis of the Au NCs. The Au NCs perform emission three times at 433 nm, 702 nm and 1052 nm under the excitation wavelength of 350 nm, tetracycline has a linear quenching effect at 702 nm, Cu<2+> is added to an Au NCs system after quenching, fluorescence recovers, and fluorescence intensity at 1052 nm is almost not affected in the overall process; tetracycline is added to the Au NCs, observation is carried out under a UV (ultraviolet) lamp with wavelength of 365 nm,red fluorescence of the Au NCs changes into yellow fluorescence, and after addition of Cu<2+>, the yellow fluorescence disappears gradually and the red fluorescence recovers gradually. Therefore, a near-infrared ratio fluorescence switch for tetracycline and Cu<2+> and UV visual dual-signal detection are established. The method has the advantages of adopting a fluorescence spectrum in a near infrared region and being small in interference, high in specificity and detection sensitivity, convenient to operate and capable of detecting tetracycline and Cu<2+> simultaneously.

Methods for etching copper in the fabrication of integrated circuits are disclosed. In one exemplary embodiment, a method for fabricating an integrated circuit includes providing an integrated circuit structure including a copper bump structure and a copper seed layer underlying and adjacent to the copper bump structure and etching the seed layer selective to the copper bump structure using a wet etching chemistry consisting of H₃PO₄ in a volume percentage of about 0.07 to about 0.36, H₂O₂ in a volume percentage of about 0.1 to about 0.7, and a remainder of H₂O, and optionally NH₄OH.

A lead frame is provided, including one or more power terminals and one or more control terminals, wherein at least one of the control terminals is externally terminated with a press-fit contact member, and wherein at least one of the control terminals and at least one power terminals are formed from different materials. With the disclosed lead frame of the invention, lower material cross sections in the power terminals will be provided because of the better electrical conductivity when using pure copper compared to alloys with higher mechanical strengths. Also specific/different plating could be added to the individual needs of the different pin types without using masks in the plating process.

A NiCuSiFe alloy prepared from Ni and Cu contained waste through resmelting contains Ni (25-60 wt%), Cu (25-60), Si (8-15), impurity (less than or equal to 0.2) and Fe (the rest), and can also be used as additive for smelting refractory steel, high-weatherability steel and other alloy steel. Its advantages are low smelting point, high dispersity and deoxidizing effect in molten steel and low cost.

The invention relates to a humic acid-containing complete-element water soluble fertilizer. The fertilizer contains potassium humate, potassium fulvate, mannitol, potassium nitrate, potassium dihydrogen phosphate, ammonium biphosphate, urea, N-butyl thiophosphoric triamide, magnesium sulfate monohydrate, boric acid, EDTA chelated manganese, EDTA chelated iron, EDTA chelated copper, EDTA chelated zinc and sodium molybdate. The fertilizer provided by the invention has the advantages of complete nutrition, reasonable proportioning and synergism of all components, good crop growth promotion effect, and good water solubility, can be applied to crops while the crops are irrigated, especially has good effects on economic crops and field crops in dry lands, and is in favor of realizing water saving irrigation.